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CPH Traps Anticlinal - Rock layers folded into a dome Anticlinal - Rock layers folded into a dome Stratigraphic - Rock layers changing from a good reservoir to non-reservoir due to change in rock type (pinch-out), reservoir quality (diagenesis), or removal (erosional unconformity) Stratigraphic - Rock layers changing from a good reservoir to non-reservoir due to change in rock type (pinch-out), reservoir quality (diagenesis), or removal (erosional unconformity) Fault - Offset of rocks such that oil and gas accumulates in reservoir rock Fault - Offset of rocks such that oil and gas accumulates in reservoir rock

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CPH Petroleum System Elements Source Rock - A rock with abundant hydrocarbon-prone organic matter Source Rock - A rock with abundant hydrocarbon-prone organic matter Reservoir Rock - A rock in which oil and gas accumulates: - Porosity - space between rock grains in which oil accumulates - Permeability - passage-ways between pores through which oil and gas moves Reservoir Rock - A rock in which oil and gas accumulates: - Porosity - space between rock grains in which oil accumulates - Permeability - passage-ways between pores through which oil and gas moves Seal Rock - A rock through which oil and gas cannot move effectively (such as mudstone and claystone) Seal Rock - A rock through which oil and gas cannot move effectively (such as mudstone and claystone) Migration Route - Avenues in rock through which oil and gas moves from source rock to trap Migration Route - Avenues in rock through which oil and gas moves from source rock to trap Trap - The structural and stratigraphic configuration that focuses oil and gas into an accumulation Trap - The structural and stratigraphic configuration that focuses oil and gas into an accumulation

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CPH Secondary Recovery WaterGasSteamChemicalFire Pumped into the reservoir to force additional petroleum out of the pores in the reservoir rock InjectionWells Producing Wells Of 60% Remaining in Reservoir